Vocal guidance engines for playback devices

A method, comprising:

• maintaining, via data storage of a playback device, a library that includes one or more source device names and corresponding audio content, the audio content configured to be played back via or more amplifiers to indicate association of a particular source device with the playback device via a first wireless data network, wherein maintaining the library comprises storing the library in a first memory of the data storage that is only directly accessible via one or more first processors configured to execute at least one general-purpose operating system (GPOS), the data storage including a second memory that is only directly accessible via one or more second processors configured to execute at least one real-time operating system (RTOS), wherein the one or more second processors have a different construction that the one or more first processors;
• receiving, via a second wireless data network different from the first, information from one or more remote computing devices;
• and
• based on the information, updating the library by:
• (i) adding at least one new source device name and corresponding audio content;
• (ii) changing at least one source device name or its corresponding audio content;
• or both (i) and (ii).

One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors of a playback device, cause the playback device to perform operations comprising:

• maintaining, via data storage of the playback device, a library that includes one or more source device names and corresponding audio content, the audio content configured to be played back via one or more amplifiers of the playback device to indicate association of a particular source device with the playback device via a first wireless data network, wherein maintaining the library comprises storing the library in a first memory of the data storage that is only directly accessible via one or more first processors configured to execute at least one general-purpose operating system (GPOS), the data storage including a second memory that is only directly accessible via one or more second processors configured to execute at least one real-time operating system (RTOS), wherein the one or more second processors have a different construction that the one or more first processors;
• receiving, via a second wireless data network different from the first, information from one or more remote computing devices;
• and
• based on the information, updating the library by:
• (i) adding at least one new source device name and corresponding audio content;
• (ii) changing at least one source device name or its corresponding audio content;
• or both (i) and (ii).